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Intel BLKD946GZABL Product Specification - Page 14

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Intel Desktop Board D946GZAB Technical Product Specification 1.1.3 Block Diagram Figure 2 is a block diagram of the major functional areas. PCI Express x1 Interface PCI Express x1 Slot 1 Parallel ATA IDE Connector Parallel ATA Interface LGA775 Processor Socket System Bus (1066/800/533 MHz) Intel 946GZ Express PCI Express Chipset x16 Interface Intel 82946GZ Graphics and PCI Express x16 Connector Memory Controller Hub (GMCH) USB Legacy I/O Controller LPC Bus Intel 82801GB I/O Controller Hub (ICH7) Back Panel/Front Panel USB Ports Serial Port Parallel Port PS/2 Mouse PS/2 Keyboard Diskette Drive Connector Serial Peripheral Interface (SPI) Flash Device DMI Interconnect VGA Port Display Interface Channel A DIMM Dual-Channel Memory Bus SMBus Channel B DIMM LAN Connect Interface 10/100 LAN PLC LAN Connector Serial ATA IDE Interface Serial ATA IDE Connectors (4) High Definition Audio Link PCI Slot 1 PCI Slot 2 PCI Bus SMBus Audio Codec Mic In Line Out Line In/Retasking Jack Line Out/Retasking Jack Mic In/Retasking Jack Figure 2. Block Diagram High Definition Audio Link Header OM18438 14

Section	Page
Intel® Desktop Board D946GZAB Technical Product Specification	1
Revision History / Disclaimer	2
Preface	3
Intended Audience	3
What This Document Contains	3
Typographical Conventions	3
Contents	5
1 Product Description	9
1.1 Overview	10
1.1.1 Feature Summary	10
1.1.2 Board Layout	12
1.1.3 Block Diagram	14
1.2 Online Support	15
1.3 Processor	15
1.4 System Memory	16
1.4.1 Memory Configurations	18
1.5 Intel® 946GZ Express Chipset	21
1.5.1 Intel 946GZ Graphics Subsystem	21
1.5.2 USB	23
1.5.3 Serial ATA Interfaces	24
1.5.4 Parallel IDE Interface	25
1.5.5 Real-Time Clock, CMOS SRAM, and Battery	25
1.6 Legacy I/O Controller	26
1.6.1 Serial Port	26
1.6.2 Parallel Port	26
1.6.3 Diskette Drive Controller	26
1.6.4 Keyboard and Mouse Interface	26
1.7 Audio Subsystem	27
1.7.1 Audio Subsystem Software	28
1.7.2 Audio Connectors and Headers	28
1.8 LAN Subsystem	29
1.8.1 Intel® 82562GX PLC Device	29
1.8.2 LAN Subsystem Software	29
1.8.3 RJ-45 LAN Connector with Integrated LEDs	29
1.9 Hardware Management Subsystem	30
1.9.1 Hardware Monitoring and Fan Control	30
1.9.2 Fan Monitoring	30
1.9.3 Chassis Intrusion and Detection	30
1.9.4 Thermal Monitoring	31
1.10 Power Management	32
1.10.1 ACPI	32
1.10.2 Hardware Support	34
2 Technical Reference	39
2.1 Memory Map	39
2.1.1 Addressable Memory	39
2.2 DMA Channels	41
2.3 Fixed I/O Map	42
2.4 PCI Configuration Space Map	43
2.5 Interrupts	44
2.6 PCI Interrupt Routing Map	45
2.7 Connectors and Headers	46
2.7.1 Back Panel Connectors	47
2.7.2 Component-side Connectors and Headers	48
2.8 Jumper Block	56
2.9 Mechanical Considerations	57
2.9.1 Form Factor	57
2.9.2 I/O Shield	58
2.10 Electrical Considerations	59
2.10.1 DC Loading	59
2.10.2 Fan Header Current Capability	59
2.10.3 Add-in Board Considerations	60
2.10.4 Power Supply Considerations	60
2.11 Thermal Considerations	61
2.12 Reliability	63
2.13 Environmental	63
3 Overview of BIOS Features	65
3.1 Introduction	65
3.2 BIOS Flash Memory Organization	66
3.3 Resource Configuration	66
3.3.1 PCI Autoconfiguration	66
3.3.2 PCI IDE Support	67
3.4 System Management BIOS (SMBIOS)	67
3.5 Legacy USB Support	68
3.6 BIOS Updates	68
3.6.1 Language Support	69
3.6.2 Custom Splash Screen	69
3.7 BIOS Recovery	69
3.8 Boot Options	70
3.8.1 CD-ROM Boot	70
3.8.2 Network Boot	70
3.8.3 Booting Without Attached Devices	70
3.8.4 Changing the Default Boot Device During POST	70
3.9 Adjusting Boot Speed	71
3.9.1 Peripheral Selection and Configuration	71
3.9.2 BIOS Boot Optimizations	71
3.10 BIOS Security Features	72
4 Error Messages and Beep Codes	73
4.1 Speaker	73
4.2 BIOS Beep Codes	73
4.3 BIOS Error Messages	73
4.4 Port 80h POST Codes	74
5 Regulatory Compliance and Battery Disposal Information	79
5.1 Regulatory Compliance	79
5.1.1 Safety Regulations	79
5.1.2 European Union Declaration of Conformity Statement	79
5.1.3 Product Ecology Statements	82
5.1.4 EMC Regulations	85
5.1.5 Product Certification Markings (Board Level)	86

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Intel Desktop Board D946GZAB Technical Product Specification

1.1.3

Block Diagram

Figure 2 is a block diagram of the major functional areas.

Intel 946GZ Express

Chipset

Intel 82801GB

I/O Controller Hub

(ICH7)

Intel 82946GZ

Graphics and

Memory

Controller Hub

(GMCH)

Serial

Peripheral

Interface (SPI)

Flash Device

System Bus

(1066/800/533

MHz)

LGA775

Processor

Socket

Parallel ATA

IDE

Connector

Diskette Drive

Connector

Legacy

I/O

Controller

PS/2 Keyboard

PS/2 Mouse

Parallel Port

LPC

Bus

OM18438

Audio

Codec

PCI Express

x16 Interface

PCI Express

x16

Connector

PCI Bus

SMBus

High Definition Audio Link

USB

Dual-Channel

Memory Bus

SMBus

PCI Slot 1

PCI Slot 2

Serial ATA IDE

Connectors (4)

Serial ATA

IDE Interface

Channel A

DIMM

Channel B

DIMM

Back Panel/Front

Panel

USB Ports

DMI Interconnect

PCI Express x1 Slot 1

PCI Express x1 Interface

Line Out/Retasking Jack

Line Out

Line In/Retasking Jack

Mic In/Retasking Jack

Mic In

Serial Port

High Definition

Audio Link

Header

LAN

Connector

10/100

LAN PLC

LAN Connect

Interface

VGA

Port

Display Interface

Parallel ATA Interface

Figure 2.

Block Diagram